Composites polyethylene / copolymer ethylene octene / hydrophobized chalk production by mixing in melts and elasticity regulation
Abstract
Results of investigations of polyethylene and copolymer ethylene-octene in wide range of concentration polymers and composites filled in by hydrophobized chalk obtained with goal of their elasticity increasing. Polymer blends and three-component composites filled in by hydrophobized chalk produced by extrusion method as mixing in melts. Rheological properties investigated preliminary and indicators of melt flow rates of polymer melts, their blends, and also dispersed-filled blends based on copolymer ethylene-octene and polyethylene of by hydrophobized chalk of different content. Physic-mechanical properties: tensile strength and elongation at break – of low density of polyethylene, copolymer ethylene-octene, their blends and also dispersed-filled composites in area concentration of the filler chalk up to 60 % mass. was determined. Detected that thermoplastic polyethylene has good compatibility with copolymer ethylene-octene in all area of investigated concentrations. Results of physicomechanical investigations of blends and composites testifies about the elastication – raising of elongation of break – in cases of introduction of copolymer ethylene-octene into polyethylene and hydrophobized chalk. Concentration dependences are considered and features of elastication of two- and three-components polymer blends containing hydrophobized chalk are revealed.
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